81721413

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{241}}^1\times {\mathrm{661}}^1$

素因数の和:930

約数の個数: 32

約数和(自身を含む): 128163200

約数和(自身を除く): 46441787

約数列:

[1, 3, 9, 19, 27, 57, 171, 241, 513, 661, 723, 1983, 2169, 4579, 5949, 6507, 12559, 13737, 17847, 37677, 41211, 113031, 123633, 159301, 339093, 477903, 1433709, 3026719, 4301127, 9080157, 27240471, 81721413]

約数ペア:

[(1, 81721413), (3, 27240471), (9, 9080157), (19, 4301127), (27, 3026719), (57, 1433709), (171, 477903), (241, 339093), (513, 159301), (661, 123633), (723, 113031), (1983, 41211), (2169, 37677), (4579, 17847), (5949, 13737), (6507, 12559)]